Advanced Materials Research Vol. 773

Abstract: This paper represents the conducted electromagnetic interference (EMI) characteristics of the electric drive system in electric vehicles, based on the typical vehicle driving circles. Firstly, the typical vehicle driving circles are introduced, such as Economic Commission of Europe-15 (ECE-15), Extra Urban Driving Cycle (EUDC) and so on. Also, the relationships between motor speed, torque and vehicle speed are calculated according to the mechanical properties of the vehicle. Then, the simulation and experiment platforms are established considering the motor speed and torque as reference inputs. Finally, the dynamic EMI of power electronics device switching processes, system dynamic differential mode (DM) and common mode (CM) EMI are analyzed through the simulation and experiment results.

Abstract: In this paper, the test fuel is organic waste water slurry, which can be mixed to by organic waste water and pulverized coal. The organic waste water comes from chamfor Papermaking Company of Jiangsu province. Theoretically, we introduce the structure retrofit of the 75t/h Circulating Fluidized Bed Boiler of chamfor Papermaking Company in detail. It is the first industrial application that coal organic waste water as fuel to burn in circulating fluidized bed boiler in China. To get more reasonable boiler structure transformation scheme and more accurate data, we need carry lots of experiments.

Abstract: The instability occurring in OTSG (Once-Through Steam Generator) of movable nuclear power plants is presented by the multivariable frequency domain theory. As concerning coupling interactions of OTSG tubing, it is more efficient for analyzing the instability of OTSG compared the common single variable method. A mathematical model for the system is derived from the fundamental equations by using the perturbation, Laplace-transform and the nodalization techniques. The stable boundary and parameters which influence the stability of the system are evaluated through computer simulation.

Abstract: On the base of the original geometry of the outlet channel of nozzle box, four different geometry of the outlet channel were constructed. Using the Euler-Lagrange method, the flow characteristics of solid particles in the five different channels were numerical simulated. The particle trajectories and the erosion regions were discussed. The analysis showed that the different geometry of the outlet channel would effect the particle erosion in the channel and the stator of the control stage.

Abstract: The worse coal quality cause low center flame temperature in furnace, low combustion stability, high carbon content in fly ash and slag. The refractory belt installed in primary combustion zone can reduce the heat absorption capacity of water wall and improve the average temperature to steady ignition and high efficient combustion. For conforming the area of refractory belt better, the equation was founded by thermal computational methods and analyzing the different influence to the area of refractory belt.

Abstract: As the growth of the national economy and the constantly improving of people's living standards, electricity load has maintained a rapid, high growth, especially the air conditioning load growth makes a greater impact on the economical operation of power grids, power supply and demand balance. How to achieve the peak air conditioning load regulation of power grid load cut is the main research contents of this paper, this paper design an implementation of intelligent air conditioning load regulation of power system peak load shifting program. The article describes the characteristics of grid load in the current economic situation. Designing on the different forms of communication networking Negative control chip and centralized control of the intelligent air conditioning load, also described the entire system of communication networking solutions and peaking strategy.

Abstract: The CFB boilers located in Longyan and Jinjiang in the province of Fujian, was originally designed to burn anthracite. Recently, a research was carried out to study the adaptability of coal type by burning Shenhua bituminous coal in this unit. It showed that the temperature of bed and exhaust gas would not change signally after the change of coal type. Both of the coals share similar ash characteristics. But the use of Shenhua bituminous coal can reduce the carbon content in the fly ash and the auxiliary power rate, thus improving the economic operation of boiler. As for the pollutant, Shenhua bituminous coal brought less dust emission and more NO_x. On the whole, change of the coal type is beneficial to the economic operation of the plant. The study can provide valuable references for similar type units on how to expand coal sourcing channels and reduce plant cost.

Abstract: A kind of potential fuel for vehicles is Liquefied Natural Gas (LNG) whose cryogenic energy can be recovered for vehicles air-conditioning system. In this paper, LNG city bus air-conditioning system utilizing LNG cold energy is concerned to be subject investigated. The design requirements of cold energy recovering for LNG city bus air-conditioning system are introduced and the project design is presented.

Abstract: In this paper, the abnormal phenomenon of fixed series compensation GAP is discussed. The main reason, too large attenuation of the fiber communication between the GAP trigger equipment and control protection screen input plate is analyzed. The improved measurement to the fixed series compensation system operation and design is proposed.